Book cover and index



March 5, S H

BOOK COVER AND INDEX Filed May 1, 1933 INVENTOR. Jo xm' Jew/1o: BY 3 g A X TTOR EYS.

Patented Mar. 5, 1935 BOOK COVERYAND- INDEX JohnSchade, Holyoke, Mass, assignor to National Blank Book Company, Holyoke, Mass., a corporation of Massachusetts Application May 1, 1933, SerialN'o. 668,697 7Claims. (cine-419)" This, invention relates to an improved combination of a book, separable index sheets for the :book, and a book cover to not only protect the book and index sheets but also to bind the com- 'bination together in a new and useful manner.

' According to one feature of the combination the invention is planned to simplify the construction of the parts and to make them in a form for more conveniently changing the book partof the combination than in prior art structures.

- ,:;Other "features will be apparent from. the

drawing, detailed claims.

In thedrawing, 4 I Fig. 1 shows a perspective View of the index sheets'slightly spacedapart, withtwo of them shown in full lines,'an'd dotted lines indicating others that can be inserted in a bound book; Fig. 2 shows a perspective view of a book such as a large telephone directory with two index sheets in place and dotted lines indicating other pages and index sheets ready to be inserted in its cover; 7 m p Fig. 3 shows a perspective view of the covered book combination as it appears in use, with parts dotted; I

Fig. 4 shows aperspective view of the metallic binder construction carried by the cover on the insideof its ba'ck'portion, and with oneindex sheet shown in dotted position indicating the way in which such sheets arezheld by the binder; Fig. 5 shows a detail View 'of the binder construction at one end; and Fig.6 shows a detail of a modified construction. In carrying out my invention I make upa set of individual'index sheets 1. 'Each sheet is preferably made the same size as the bound sheets in the book to be indexed except in width. The width is long enough for an outer margin to ex- 40 tend beyond the sheets of the book whenthe loose index sheet'is tucked in between the bound sheets asfar as :it will go; At the upper and lower corners of each index sheet I provide rectangular tab extensions 2 and 3. I place those tabs so that 45 they are very close to the inner line of the sheet description, and annexed and with enough area in the short tabs to prevent easy' bending or twisting. .Suoh tabs may be an integral part of theindex sheet, especially when such sheets are made of heavy enough stock to serve thetabs in giving strength. But I prefer and consider it an optional feature of my invention to make the index sheets thin enough to be tucked way down between sheets of the bound book so as to be'retained in place to a large ex- 5 tent bythe normal pressure between suchbound sheets close to the line of binding. In this way I the loose index sheets will be heldin place without depending so much on the tabs as binding parts for the loose sheets, all-as will appear. In the construction shown I have indicated the tabs 5 2 and 3 asma de thicker'than the index sheets. Suchtabs may be conveniently made of celluloid.

Their upper edges are preferably just a small distance from the line of their inner edges so that both are near the hinge line of the boundleaves. 10

The index leaves are inserted in atelephone directory, for example, as indicated inFig. 2. In such use the sheets arefarenough apart in the book that their extensions at the sides do not need to be in staggered'arrangement butthatcon l5 'struction for the side extension may be used.-

With the bound-book thus indexed it is applied to the cover shown. in Fig. 4. The tabs 2 extending from the upper edge of the-book are hooked under one of the curved shelves 4 of themetallic binder +20 or loose leaf structure. One of these shelves, 4

shown at'the upper edge is, preferably stationary and not mountedfor movement. The other one 5 at the lower end is hinged at 6 so. as toturn up and allowthe' lower set of tabs to be put in =po- .25

sition with the backof the book parallel and against the back of the cover. Then shelf 5 is turned to overlie the tabs at the bottom edge of the book asshe1f-4-overliesthe tabs atthetop. To retain shelf 5 in tab holding positionits .;30 end opposite the hinge is providedwith a cylindrical opening 7' to receive a headed pin 8, the

inner end of which enters an aligned tubular opening9 provided in the stationary part of the metallic binder part 10. A spring 11 is adapted to act as a keeper by engaging the shoulders 12 of pin 8 when the latter ispushed home.-

Thus, the insertion of the indexed book in the cover is an extremely simple operation. The tabs are hidden by the end plates or outer skirts 13 shown for shelves 4 and '5 which makes a good appearance at the end of the book. The removal of the bound book from its indexing cover parts is also extremely simple. Pin 8 is released by thumbing up spring 11, pulled out to release shelf 5, the latter is turned on its hinge and the bound book with itsindex leaves is lifted out.

The index leaves can be inserted in a new edition of the telephone directory or other book'and to make it so easy to do that the user will not feel the same burden of manipulation that prior .art structures have required. 9 v

slide with relation to the shelves 4 and 5 andfor the most part out of contact therewith. It is only when the combination is held with thev bound book hanging downwardly that the tabs come into full play against the shelves 4 and 5 to retain the bound book in the cover. There are enough tabs to do this without much strain on any one. Thus, the tabs will accomplish their retaining function without being necessarily of metal or bulky construction, but simple unperforated tabs at the inner ends of the index leaves. The latter being thin, and pinchedin between the bound leaves of the book, tend to move always with the book. To a substantial extent the strain on the tabs is eliminated by permitting a very loose play for them under shelves 4 and 5 and depending upon their acting against the shelves as'a group to retain the parts together, which is needed for the most part when the book is closed.

I have shown in Fig. 6 a detail modification of the tab and shelf engaging parts made in a form to stand extra strain. In this modification tabs 2" may, be made like those of the other figures except that where they contact with shelf 4' (at one end and likewise at the other end in contact with the corresponding shelf not shown in Fig. 6) the edge is rounded or hook-shaped as at 15. The shelf 4 (and the corresponding meat the other end) is provided with a beaded edge 16 to mate with theroun'ded edge of tab 2'. This is desirable insome cases where the particular use would otherwise require a stronger tab. The rounded surface engagement of tab and shelf indicated in Fig. 6 is a little 'more expensive to make, but has advantages as a detail combined with my broader invention.

' When desired, my invention contemplates making; one or more of the index sheets (preferably one near the center of the pack) reinforced by a band at the inside edge, such as might be made of metal to include the edge and both tabs. 'Such an index sheet would hold the combination together againstenough strain to tear the weaker tabs on the other index sheets. Then the tabs on the latter would serve primarily to prevent the index sheets from falling out. Of course much the same result would be secured if a wire rod or flat steel spring were used instead of the reinforced index sheet, to bind the book in the cover, and all the index sheets could then be of the same character. would be'holding the index sheets in the combination but without the strain due to holding the bound book in the combination. All these arrangements are contemplated in the broader features of the invention as claimed.

What I claim is:

1. In combination a book cover having loose leaf structure on the inside face of its back portion, inwardly extending end flanges on said structure spaced from the back portion, a set of index sheets fitting the cover between said end flanges, said index sheets having outwardly extending tabs to underlie said end flanges, one of In the latter case the tabs said flanges being movably mounted so as to permit the placing in and removal of the index sheet tabs from underlying position with respect to both flanges without the bending of said index sheets or tabs, said index sheets being arranged for insertion at spaced intervals in a bound book and to hold the latter in the cover.

2. In combination a book cover, a loose leaf structure fastened inside the back portion of the cover, end flanges on said loose leaf structure extending transversely of the back portion, a set of index sheets for temporary binding in the cover, said sheets having tabs at their back corners for underlying said flanges, means forming part of the loose leaf structure for movably mounting one of said flanges to release the tabs and a latch to retain said flange against movement.

3. In a temporary binder of the type in which a loose leaf structure binds a set of index sheets which are inserted in a bound book whereby the latter is both temporarily covered and indexed by the binder, the combination of a set of index sheets provided with top and bottom tabs at the inside corners, a loose leaf structure on the binder provided with end pockets to receive and form the sole retaining means for said tabs, one ofsaid pockets being movably mounted on the loose leaf structure, so as to provide for simultaneous endwise insertion of the tabs in the opposite end pocket and simultaneous pocketing of'the adjacent tabs by closing movement of one of the pockets.

4. In a temporary binder of the type in which a loose leaf structure binds a set of index sheets which are inserted in a bound book whereby the latter is both temporarily covered and indexed by the binder, the combination of a set of index sheets provided with top and bottom tabs at the inside corners, a loose leaf structure on the binder provided with end pockets to receive and form the sole retaining means for said tabs, one of said pockets being movably mounted on the loose leaf structure, so as to provide for simultaneous endwise insertion of the tabs in the opposite end pocket and simultaneous pocketing of the adjacent tabs by closing movement of one of the pockets, and a latch to hold the movable pocket in tab retaining position.

5. In a temporary binder of the type in which a loose leaf structure binds a set of index sheets which are inserted in a bound book whereby the latter is both temporarily covered and indexed by the binder, the combination of a set of index sheets provided with top and bottom tabs at the inside corners, a loose leaf structure on the binder provided with end pockets to receive and form the sole retaining means for said tabs, one of said pockets being movably mounted on the loose leaf structure, so as to provide for simultaneous endwise insertion of the tabs in the opposite end pocket and simultaneous pocketing of the adjacent tabs by closing movement of one of .the pockets, said pockets having a sufficient capacity to 'provide for a very loose fit of the tabs so as to prevent wear and tear.

6. In a temporary binder of the type in which a loose leaf structure binds a set of index sheets which are inserted in a bound book, the combinaof the tabs, said tabs and flanges forming the sole binding connection between the sheets and binder.

'7. In combination a temporary binder of the type in which a loose leaf structure binds a set of index sheets which are inserted in a bound book, a loose leaf structure fastened inside the binder back, inturned crescent-shaped flanges at the end of the binder to form open pockets, a bound book and a set of index sheets inserted in the book and provided with integral tabs extend- 10 ing outwardly above and below the bound sides of the book, said tabs extending into said pockets to form with the latter the sole retaining means for the book in the binder, said pockets permitting a loose movement of the book between the planes where its back engages the back of the binder and the upper edges of the tabs engage said flanges, one of said flanges being mounted for movement by hand to and from binding and releasing position.

JOHN SCHADE. 

